ASTROSAT CZTI

Data Quality Report

Orbit 08332

Creation date: 2024-06-27T15:31:14.306502
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G07_029T01_9000001158_08332cztM0_level2.evt modeM0/AS1G07_029T01_9000001158_08332cztM0_level2_quad_clean.evt
Size (bytes)428,601,60082,920,960
Size408.7 MB 79.1 MB
Events in quadrant A2,975,272519,336
Events in quadrant B3,060,056526,099
Events in quadrant C3,235,684515,141
Events in quadrant D3,269,423499,414

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131663
B0133152
C0140532
D0143692

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6463280.433235%
B6463370.572490%
C6463981.516324%
D6463120.185672%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7503 6464 0 0 0.00% 0.00%
B 7503 6464 2 2 0.03% 0.03%
C 7503 6464 62 62 0.83% 0.96%
D 7503 6464 1 1 0.01% 0.02%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 234 39054 244.63 757 738 156.6
A 14 111 23985 148.42 757 738 156.6
A 0 226 7300 41.89 757 738 156.6
B 0 214 45548 305.96 761 743 146.4
B 0 219 31656 211.1 761 743 146.4
B 12 111 16478 107.45 761 743 146.4
C 9 54 378692 2216.2 732 737 170.5
C 13 61 5446 27.61 732 737 170.5
C 3 202 1800 6.23 732 737 170.5
D 12 221 383455 2169.78 728 709 176.4
D 2 152 54445 304.63 728 709 176.4
D 1 52 27492 151.83 728 709 176.4

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter